Robust Nonlinear Control Framework for High-Speed Electric Drives in Autonomous Manufacturing Systems

Abstract

The high-speed electric drives are essential to autonomous manufacturing systems that need to prevent inaccuracy of motion control, quick reaction, and stable performance under dynamic industry conditions. Nonetheless, it has been observed that the effectiveness of traditional control techniques like the Proportional, Integral and Derivative (PID) type of control and the field-oriented control in the presence of nonlinear control dynamics, parameter ambiguities and external interferences in contemporary manufacturing processes has a limit. To overcome these difficulties, this paper will suggest a strong nonlinear control system of high-speed electric motors in autonomous manufacturing system. The suggested method combines adaptive sliding mode control with nonlinear disturbance observer in order to increase control robustness, tracking accuracy, and stable control in the presence of uncertainties. The adaptive sliding mode controller is destined to manage nonlinearities of the system and changes in parameters, whereas the disturbance observer measures and is used to counter the disturbance that are unknown, including load torque variations, friction, and magnetic saturation. The integration of these methods effectively minimise chattering effects as well as the overall performance of the electric drive system as noticed in the dynamics. The philosophy is assessed by simulation studies of a high-speed permanent magnet synchronous motor (PMSM) model on different industrial working conditions including unpredictable variation of load and parameters unpredictability. The simulations have shown that speed tracking performance has greatly improved, transient response has been improved and the torque ripple is also significantly reduced, as well as the disturbance rejection is improved compared with standard control techniques used. These enhancements demonstrate the efficiency of the presented nonlinear control scheme in the provision of stable and efficient functioning of high-speed electric motors. Thus, the prospective solution allows a good recommendation of containing control to high-technology industry automation, smart factory and next-generation autonomous factory systems.